Swinging gate



(No Mode-1.)??

J. W. GORHAM.

SWINGING GATE.

Patented Mar. 10, 1891.

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UNITED STATES ATENT OEEICE.

JOHN 1V. GORHAM, .OF MOUNT UNION, IOVA.

swlNelNe GATE.

SPECIFICATION forming part of Letters Patent Nd 447,819, dated March 10, 1891.v

Application fled July '7I 1890. Serial No. 357.982. (No model.)

To all whom it may concern:

A Be it known that I, JOHN W. GORHAM, a citizen of the United States, residing at Mount Union, in the county of Henry and State of Iowa, have invented certain new and useful Improvements in Swinging Gates; and I do hereby declarethat. the following is afull,clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters of reference marked thereon.

My invention relates to that class of swinging gates which are supported and pivoted at their center.

The object of my invention is to produce a centrally-pivoted automatically-closing gate operated by a cam-like device; also a gate, as above described, which may be readily lifted from its frame and placed out of the way when it is desired to pass large teams through the gate-opening.

Vith these ends in view my invention consists in the parts and combinations of parts, as will be fully described, and pointed out in the claim.

In the accompanying drawings, Figure l is a front elevation of a gate with my improvement attached. Fig. 2 is a vertical section taken on the line e z, Fig. l. Fig. 3 is an end view of the gate, showing it swungopen in dotted lines.

The gate A is pivoted between two posts. (Shown in dotted lines.) If desired,there may be a catch between the posts and gate; but in practice such device has been found unnecessary, as the device hereinafter described has been found sufficient to keep the .gate

' closed against the action of the wind, the.

Between the two central pickets of the gate A is secured a guide B, having a vertical central bore o. through its entire body. The top and bottom horizontal bars a2 and a3 also have vertical central bores in line with the bore c in guide B.

b is a pin or other suitable device secured in guide B, crosswise of the central bore a.

C is a hollow post, which may be made of any suitable material, but in the present instance itis made of metal. The top of this post C is sheared, and four inclined faces yc are formed on the top of said post. These inclined faces are all of the same pitch or incline, and form a double-V-shaped cam in the top of said post. The bottom of the post C is rectangular. D is a post or base secured in the ground and is provided with a rectangular extension d.

The post C being in position and the pin b resting between the inclined faces at their juncture and the lower portion of the post resting over the rectangular portion d of post D, it is obvious that a push from orv on either side or end of the gate will cause the pin b to ride up the inclined faces, thus raising and opening the gate simultaneously. Upon being released the gate will automatically close itself. If the pressure brought to bear upon the gate be sufficient, it will turn around and close, the pin b riding down the opposite inclined faces.

It will thus be seen that I provide an automatically-closing gate, and one that can be removed very readily from its position and placed on one side; also a gate that is simple in construction.

It is evident that many slight changes and alterations may be made in the relative con.- struction and arrangement of parts without departing from the spirit of my invention, and hence I would have it understood that I do not confine myself strictly to the parts herein described.

Vhat I claim, and desire to secure by Letters Patent, is-

The combination, with a base, of a removable cylindrical post having a double-V cam formed at its top, a gate centrally pivoted on said post, and a supporting cross-pin secured to the gate and traveling upon said double cam, substantially as shown.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

vJOHN w. GORI-IAM.

Vitnesses:

J. DEAL, M. C. DEAL. 

